Extract rar to desktop, copy mp3 file to your Music folder (on Documents).Open file in Media Player, save playlist with name UCL SONG INTRO(for example).Start game, from options, assign the UCL playlist created to favorite team, or assigns the playlist as you would like to multiple teams/events.

For example on the video i assign the UCL playlist to Milan (Home) on the intro field event, for hear the UCL song @ intro of my tournament (MILAN- BARCA @ S. Siro).